Where, before 6th April 2012, an appeal has been made under section 18 of the 1961 Act, the amendments listed in paragraphs (a) to (c) of the definition of “the main amendments made by section 232 of, and Part 34 of Schedule 25 to, the Act” do not apply to that appeal.

Where the new section 18 of the 1961 Act applies to an appeal in a case where the main amendments made by section 232 of, and Part 34 of Schedule 25 to, the Act do not apply, the new section 18(3) of the 1961 Act applies as if its reference to a statement under the new section 17(1)(b) of the 1961 Act (certificates of appropriate alternative development) were a reference to a statement under the existing section 17(4)(b) of the 1961 Act.